Research-Stack/4-Infrastructure/hardware/build_uart_beacon.sh
2026-05-11 22:08:10 -05:00

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#!/usr/bin/env bash
set -euo pipefail
TOP="tangnano9k_uart_beacon"
DEVICE="GW1NR-LV9QN88PC6/I5"
FAMILY="GW1N-9C"
FREQ_MHZ="27"
CST="${CST:-tangnano9k_uart_loopback.cst}"
JSON="${TOP}.json"
PNR="${TOP}_pnr.json"
FS="${TOP}.fs"
CHIPDB="${CHIPDB:-/usr/share/nextpnr/himbaechel/gowin/chipdb-${FAMILY}.bin}"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_NEXTPNR="${SCRIPT_DIR}/../bin/nextpnr-himbaechel"
cd "${SCRIPT_DIR}"
echo "=== Tang Nano 9K UART Beacon Build ==="
yosys -p "read_verilog ${TOP}.v uart_tx.v; synth_gowin -top ${TOP} -json ${JSON}; stat"
if [ -x "${REPO_NEXTPNR}" ]; then
PNR_CMD="${REPO_NEXTPNR}"
else
PNR_CMD="nextpnr-himbaechel"
fi
PNR_ARGS=(
--device "${DEVICE}"
--json "${JSON}"
--write "${PNR}"
--freq "${FREQ_MHZ}"
--vopt "family=${FAMILY}"
--vopt "cst=${CST}"
)
if [ -f "${CHIPDB}" ]; then
PNR_ARGS+=(--chipdb "${CHIPDB}")
fi
"${PNR_CMD}" "${PNR_ARGS[@]}"
gowin_pack -d "${FAMILY}" -o "${FS}" "${PNR}"
sha256sum "${FS}"
echo "=== Build complete: ${SCRIPT_DIR}/${FS} ==="